Here's another pilot vote for whatever--acrophobia or bathophobia--I've got it. I cannot stand anything higher than I'm willing to fall and it is FALLING that frightens me. Honeymoon in YYZ, Mrs GF wants to visit the CN Tower, she saw it, I'm embarassed to admit, no way for GF. 38 years in planes, nary a vertigo or airsickness incident, that includes 1200 hours of fighters, 6000 in heavies and 2000+ in bizjets.
GF